C.J. SHOP 5PCS 5V Lithium Battery Charging TP4056 Board 5 Volt Mini USB 1A Charger Module DIY Product Name : Charging Module;Charger Module : Linear Charging;Current : 1A Charge Precision : 1.5%;Input Voltage : 4.5V-5.5V Full Charge Voltage : 4.2V;Input Surface : Mini USB Work Temperature : -10C to +85C;Total Size : 27 x 19 x 6mm/1.1" x 0.75" x 0.24"(L*W*T) Package Content : 5 x Charging Module